Ad Astra

The magazine of the
National Space Society

Volume 25, Number 4
Winter 2013

Cover Image: Now that ISS has demonstrated the technology, engineering, and operations for living and working in Earth orbital space, the next step for NASA could be establishing a city in space, assembled from modular components, to serve multiple uses. IMAGE CREDIT: Joshua Sams, Analytical Mechanics Associates (AMA), Inc., under contract to NASA Langley Research Center.